/**
 *  fileName:test_timer
 *  time:2022/2/9
 *  todo:$END$
 */

let timer = null

console.log(`timer ==> `, timer)

timer = setTimeout(() => {console.log(111)},200)

console.log(`timer ==> `, timer)

clearTimeout(timer)

console.log(`timer ==> `, timer)

setTimeout(() => {
  console.log(`timer ==> `, timer)
},1000)
